EP 0300321 A2 19890125 - Method of manufacturing continuous fiber-reinforced thermoplastic prepregs and an apparatus for carrying out the same.
Title (en)
Method of manufacturing continuous fiber-reinforced thermoplastic prepregs and an apparatus for carrying out the same.
Title (de)
Verfahren zur kontinuierlichen Herstellung faserverstärkter thermoplastischer Prepregs und Vorrichtung zur Durchführung desselben.
Title (fr)
Procédé pour la fabrication continue de feuilles pré-imprégnées thermoplastiques renforcées de fibres et dispositif pour l'exécution de celui-ci.
Publication
Application
Priority
- JP 9273588 A 19880414
- JP 17336387 A 19870711
Abstract (en)
A continuous FRTP prepreg manufacturing apparatus comprises an extruder (1), a crosshead (5) having a main body (11) internally provided with a resin chamber (9) for containing a molten thermoplastic resin (13) extruded therein by the extruder (1) and joined to the discharge end of the extruder (1), a cooling unit (18) disposed outside and near the exit of the main body of the crosshead, and a winding unit (19) for taking up a prepreg. A fiber bundle inlet unit (8) and a fiber bundle outlet nozzle unit (10) are provided respectively at one end and at the other end of the main body (11) of the crosshead (5). Guide rollers (14) and impregnating rollers (15) are arranged within the main body (11) of the crosshead (5) so that a tension is applied to the fiber bundle (6) during impregnation or so that the fiber bundle (6) is expanded during impregnation and is condensed after impregnation. The resin-impregnated fiber bundle (6) is heated to a temperature higher than the melting point of the thermoplastic resin (13) at the fiber bundle outlet nozzle unit (10).
IPC 1-7
IPC 8 full level
B29B 15/12 (2006.01); B29C 48/06 (2019.01); B29C 48/34 (2019.01)
CPC (source: EP US)
B29B 15/125 (2013.01 - EP US); B29C 48/05 (2019.01 - EP US); B29C 48/06 (2019.01 - EP US); B29C 48/156 (2019.01 - EP US); B29C 48/34 (2019.01 - EP US); B32B 38/1866 (2013.01 - EP US); B29K 2105/14 (2013.01 - EP US); B29K 2105/251 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0300321 A2 19890125; EP 0300321 A3 19910424; EP 0300321 B1 19940309; DE 3888252 D1 19940414; DE 3888252 T2 19940630; US 5529652 A 19960625
DOCDB simple family (application)
EP 88111075 A 19880711; DE 3888252 T 19880711; US 82491592 A 19920122